Yttria vs. Mullite
Both yttria and mullite are oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is yttria and the bottom bar is mullite.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 390 | |
| 800 |
| Density, g/cm3 | 5.0 | |
| 2.7 to 3.0 |
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 to 170 |
| Maximum Temperature: Mechanical, °C | 2000 | |
| 1680 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 950 |
| Stiffness to Weight: Axial, points | 13 | |
| 22 to 31 |
| Stiffness to Weight: Bending, points | 32 | |
| 58 to 62 |
| Thermal Conductivity, W/m-K | 0.3 | |
| 3.5 to 11 |
| Thermal Diffusivity, mm2/s | 0.14 | |
| 1.4 to 3.7 |
| Thermal Expansion, µm/m-K | 8.0 | |
| 5.8 |